THE HUGHES COUNTY LAND BRIEF
Land in the
Southern Missouri Coteau Slope setting.
Hughes County has 741.5 square miles of land in South Dakota. 4 mapped landscape regions meet across Hughes County: Southern Missouri Coteau Slope, River Breaks, Southern Missouri Coteau, among others.
Glaciated plains bridge the wetter eastern prairie and the drier, more broken Great Plains. Numerous prairie potholes and other seasonal or persistent wetlands are characteristic regional landforms.
Regional context: Northwestern Glaciated Plains ↗ · Regional mapping across the county footprint
Where the landscape changes
Hughes County intersects 4 mapped regional units. The largest mapped shares are:
- Southern Missouri Coteau Slope67.7%
- River Breaks21.1%
- Southern Missouri Coteau11%
- Subhumid Pierre Shale Plains0.1%
Northwestern Great Plains in Hughes County
Rolling semiarid plains are punctuated by buttes, badlands and river breaks. Much of the regional terrain developed on sandstone, siltstone and shale without the leveling influence of continental glaciers.
Read the regional source ↗Finding your parcel within Hughes County
The atlas lists 5 cities, towns, townships, and Census communities associated with Hughes County, including Raber, Pierre, Oahe Acres. The list includes overlapping geography types and does not divide the county into exclusive service areas.
Hughes County by land and water
The Census records 59.2 square miles of water within Hughes County, or 7.4% of its total area. That share is close to Hughes County’s 7.4%. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, Hughes County has 14.3 times the land area of nearby Raber township (51.7 square miles). These areas describe boundaries, not comparable property prices.
The Census boundary meets Hyde County, Lyman County, Stanley County, Sully County within South Dakota. A tract near one of these lines should be matched to the county identifier on its own records.

